A steel beam (E 5 210 GPa) with I 5 119 3 106 mm4 and span length L 5 3.5 m is subjected to uniform load q 5 9.5 kN/m. The maximum deflection of the beam is approximately:
(A) 10 mm
(B) 13 mm
(C) 17 mm
(D) 19 mm
(B) 13 mm
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Which of the following compounds contains both ionic and covalent bonds?
a. CaSO4 b. CHCl3 c. HNO3 d. C12H22O11
A flat coil having 160 turns, each with an area of 0.20 m2, is placed with the plane of its area perpendicular to a magnetic field of 0.40 T
The magnetic field changes uniformly from 0.40 T in the +x direction to 0.40 T in the -x direction in 2.0 s. If the resistance of the coil is 16 ?, at what rate is power generated in the coil during this change? A) 5.0 W B) 10 W C) 15 W D) 20 W
Which of the following terms is given to a pair of stars that appear to change position in the sky, indicating that they are orbiting one another?
A) spectroscopic binary B) double star C) eclipsing binary D) visual binary E) none of the above
Which of the following statements best describes the line of stability?